Lenovo ThinkPad T400s 2823 Hardware Maintenance Manual page 107

Table 17. Installation steps of keyboard (continued)
2. Attach the keyboard so that the keyboard edges a are under the frame as
shown in this figure.
a
a
a
3. To make sure that the front side of the keyboard is housed firmly, gently press
the keys with your thumbs and try to slide the keyboard toward you.
4. Secure the keyboard by tightening the screws from the bottom side of the
computer.
99
Removing and replacing a FRU